| ⇢ | A | SpecialExternalDatabases added | |
| A | ↛ | SpecialExternalDbs removed |
| ⇢ | B | SpecialExternalDatabases::execute() added | |
| ⇢ | B | SpecialExternalDatabases::getRowGroup() added | |
| ⇢ | A | SpecialExternalDatabases::newFromGlobalState() added | |
| ⇢ | A | SpecialExternalDatabases::__construct() added | |
| ⇢ | A | SpecialExternalDatabases::getGroupName() added | |
| ⇢ | A | SpecialExternalDatabases::getDescription() added | |
| B | ↛ | SpecialExternalDbs::execute() removed | |
| B | ↛ | SpecialExternalDbs::getRowGroup() removed | |
| A | ↛ | SpecialExternalDbs::newFromGlobalState() removed | |
| A | ↛ | SpecialExternalDbs::__construct() removed | |
| A | ↛ | SpecialExternalDbs::getGroupName() removed | |
| A | ↛ | SpecialExternalDbs::getDescription() removed |
